bohu | 1e1a7bb | 2021-07-26 13:47:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2021 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | |
| 18 | #pragma once |
| 19 | |
| 20 | #include "fake-pipeline2/Base.h" |
| 21 | #include "EmulatedFakeRotatingCameraDevice.h" |
| 22 | |
| 23 | #include <ui/GraphicBufferAllocator.h> |
| 24 | #include <ui/GraphicBufferMapper.h> |
| 25 | #include <utils/Mutex.h> |
| 26 | #include <utils/Thread.h> |
| 27 | #include <utils/Timers.h> |
| 28 | |
| 29 | namespace android { |
| 30 | |
| 31 | class CameraRotator : private Thread, public virtual RefBase { |
| 32 | public: |
| 33 | CameraRotator(int w, int h); |
| 34 | ~CameraRotator(); |
| 35 | |
| 36 | |
| 37 | status_t startUp(); |
| 38 | status_t shutDown(); |
| 39 | |
| 40 | |
| 41 | void setExposureTime(uint64_t ns); |
| 42 | void setFrameDuration(uint64_t ns); |
| 43 | void setSensitivity(uint32_t gain); |
| 44 | |
| 45 | /* |
| 46 | * Each Buffer in "buffers" must be at least stride*height*2 bytes in size. |
| 47 | */ |
| 48 | void setDestinationBuffers(Buffers *buffers); |
| 49 | /* |
| 50 | * To simplify tracking the sensor's current frame. |
| 51 | */ |
| 52 | void setFrameNumber(uint32_t frameNumber); |
| 53 | |
| 54 | /* |
| 55 | * Synchronizing with sensor operation (vertical sync). |
| 56 | */ |
| 57 | |
| 58 | /* |
| 59 | * Wait until the sensor outputs its next vertical sync signal, meaning it |
| 60 | * is starting readout of its latest frame of data. |
| 61 | * |
| 62 | * Returns: |
| 63 | * true if vertical sync is signaled; false if the wait timed out. |
| 64 | */ |
| 65 | bool waitForVSync(nsecs_t reltime); |
| 66 | |
| 67 | /* |
| 68 | * Wait until a new frame has been read out, and then return the time |
| 69 | * capture started. May return immediately if a new frame has been pushed |
| 70 | * since the last wait for a new frame. |
| 71 | * |
| 72 | * Returns: |
| 73 | * true if new frame is returned; false if timed out. |
| 74 | */ |
| 75 | bool waitForNewFrame(nsecs_t reltime, nsecs_t *captureTime); |
| 76 | |
| 77 | /* |
| 78 | * Interrupt event servicing from the sensor. Only triggers for sensor |
| 79 | * cycles that have valid buffers to write to. |
| 80 | */ |
| 81 | struct CameraRotatorListener { |
| 82 | enum Event { |
| 83 | EXPOSURE_START, |
| 84 | }; |
| 85 | |
| 86 | virtual void onCameraRotatorEvent(uint32_t frameNumber, Event e, |
| 87 | nsecs_t timestamp) = 0; |
| 88 | virtual ~CameraRotatorListener(); |
| 89 | }; |
| 90 | |
| 91 | void setCameraRotatorListener(CameraRotatorListener *listener); |
| 92 | |
| 93 | /* |
| 94 | * Static Sensor Characteristics |
| 95 | */ |
| 96 | const uint32_t mWidth, mHeight; |
| 97 | const uint32_t mActiveArray[4]; |
| 98 | |
| 99 | static const nsecs_t kExposureTimeRange[2]; |
| 100 | static const nsecs_t kFrameDurationRange[2]; |
| 101 | static const nsecs_t kMinVerticalBlank; |
| 102 | |
| 103 | static const int32_t kSensitivityRange[2]; |
| 104 | static const uint32_t kDefaultSensitivity; |
| 105 | |
| 106 | static const char kHostCameraVerString[]; |
| 107 | |
| 108 | private: |
| 109 | int32_t mLastRequestWidth, mLastRequestHeight; |
| 110 | |
| 111 | /* |
| 112 | * Defines possible states of the emulated camera device object. |
| 113 | */ |
| 114 | enum EmulatedCameraDeviceState { |
| 115 | // Object has been constructed. |
| 116 | ECDS_CONSTRUCTED, |
| 117 | // Object has been initialized. |
| 118 | ECDS_INITIALIZED, |
| 119 | // Object has been connected to the physical device. |
| 120 | ECDS_CONNECTED, |
| 121 | // Camera device has been started. |
| 122 | ECDS_STARTED, |
| 123 | }; |
| 124 | // Object state. |
| 125 | EmulatedCameraDeviceState mState; |
| 126 | |
| 127 | const char *mDeviceName; |
| 128 | GraphicBufferAllocator* mGBA; |
| 129 | GraphicBufferMapper* mGBM; |
| 130 | |
| 131 | // Always lock before accessing control parameters. |
| 132 | Mutex mControlMutex; |
| 133 | /* |
| 134 | * Control Parameters |
| 135 | */ |
| 136 | Condition mVSync; |
| 137 | bool mGotVSync; |
| 138 | uint64_t mFrameDuration; |
| 139 | Buffers *mNextBuffers; |
| 140 | uint32_t mFrameNumber; |
| 141 | |
| 142 | // Always lock before accessing readout variables. |
| 143 | Mutex mReadoutMutex; |
| 144 | /* |
| 145 | * Readout Variables |
| 146 | */ |
| 147 | Condition mReadoutAvailable; |
| 148 | Condition mReadoutComplete; |
| 149 | Buffers *mCapturedBuffers; |
| 150 | nsecs_t mCaptureTime; |
| 151 | CameraRotatorListener *mListener; |
| 152 | |
| 153 | // Time of sensor startup (used for simulation zero-time point). |
| 154 | nsecs_t mStartupTime; |
| 155 | int32_t mHostCameraVer; |
| 156 | bool mIsMinigbm; |
| 157 | |
| 158 | private: |
| 159 | /* |
| 160 | * Inherited Thread Virtual Overrides |
| 161 | */ |
| 162 | virtual status_t readyToRun() override; |
| 163 | /* |
| 164 | * CameraRotator capture operation main loop. |
| 165 | */ |
| 166 | virtual bool threadLoop() override; |
| 167 | |
| 168 | /* |
| 169 | * Members only used by the processing thread. |
| 170 | */ |
| 171 | nsecs_t mNextCaptureTime; |
| 172 | Buffers *mNextCapturedBuffers; |
| 173 | |
| 174 | void captureRGBA(uint32_t width, uint32_t height, uint32_t stride, |
| 175 | int64_t *timestamp, buffer_handle_t* handle); |
| 176 | void captureYU12(uint32_t width, uint32_t height, uint32_t stride, |
| 177 | int64_t *timestamp, buffer_handle_t* handle); |
| 178 | void captureRGBA(uint8_t *img, uint32_t width, uint32_t height, |
| 179 | uint32_t stride, int64_t *timestamp); |
| 180 | void captureYU12(uint8_t *img, uint32_t width, uint32_t height, |
| 181 | uint32_t stride, int64_t *timestamp); |
| 182 | void captureRGB(uint8_t *img, uint32_t width, uint32_t height, |
| 183 | uint32_t stride, int64_t *timestamp); |
| 184 | |
| 185 | private: |
| 186 | |
| 187 | EmulatedFakeRotatingCameraDevice mRender; |
| 188 | |
| 189 | status_t queryStart(uint32_t pixel_format, int width, int height); |
| 190 | |
| 191 | status_t queryStart(); |
| 192 | |
| 193 | status_t queryStop(); |
| 194 | |
| 195 | status_t queryFrame(void* vframe, |
| 196 | void* pframe, |
| 197 | size_t vframe_size, |
| 198 | size_t pframe_size, |
| 199 | float r_scale, |
| 200 | float g_scale, |
| 201 | float b_scale, |
| 202 | float exposure_comp, |
| 203 | int64_t* frame_time); |
| 204 | |
| 205 | |
| 206 | status_t queryFrame(int wdith, |
| 207 | int height, |
| 208 | uint32_t pixel_format, |
| 209 | uint64_t offset, |
| 210 | float r_scale, |
| 211 | float g_scale, |
| 212 | float b_scale, |
| 213 | float exposure_comp, |
| 214 | int64_t* frame_time); |
| 215 | |
| 216 | }; |
| 217 | |
| 218 | }; // end of namespace android |